标签：margin jvm turn jmh uga wpf 成长 ktv 1nf
| #include<iostream> #include<string> using namespace std; void Combination(char* str,int length); void combination(char* str,int length,string result); void test(char* str,int length); void test(char* str,int length) { if(NULL==str) cout<<"origin str is NULL"<<endl; else cout<<"origin str="<<str<<endl; Combination(str,length); } void combination(char* str,int length,string result) { if(*str=='\0'||length==0) { cout<<result<<endl; return ; } string tmp = result + *str; if( strlen(str+1)>=length-1 ) { combination(str+1,length-1,tmp); } if(strlen(str+1)>=length) { combination(str+1,length,result); } } void Combination(char* str,int length) { if(NULL==str||length<=0) return; string res; for(int idx = 1;idx<=length;++idx) { combination(str,idx,res); } } | int main() { char str[] = "abc"; test(str,strlen(str)); cout<<endl; char str2[] = "ab"; test(str2,strlen(str2)); cout<<endl; char* str3 = NULL; test(str3,0); cout<<endl; char str4[] = ""; test(str4,1); cout<<endl; char str5[] = "a"; test(str5,2); cout<<endl; system("pause"); }  |
标签：margin jvm turn jmh uga wpf 成长 ktv 1nf
原文地址：https://www.cnblogs.com/meihao1203/p/9152579.html
